Required Supplies

  • Powerwall 3 Mounting bracket hardware (see Appendix A: Powerwall 3 Anchoring Details)
  • Backup Gateway 2 mounting hardware
  • External Load Break switch that may be employed with the Powerwall; must conform to AS/NZS 4777.1 and AS 3000
  • Minimum 300 V rated, 70°C rated, copper (Cu) wire, 6 mm² to 25 mm², for AC wiring (see Powerwall 3 AC and PV Wiring for details).
  • Minimum 600 V rated, 75°C rated, copper (Cu) wire, 4 mm² to 6 mm², for PV wiring (see Powerwall 3 AC and PV Wiring for details).
    Informational PurposesAn informational icon, calling your attention
    Note
    AC and PV wiring conductors must be made of solid wire, stranded wire or fine stranded wire. Forked terminals are required for fine stranded wire. The wires must be compliant with local regulations.
  • Insulated forked terminals for PV wiring; (7) forked terminals are included in the Powerwall 3 accessory bag. If using other forked terminals, Tesla recommends the following or equivalent:
    • TE Connectivity P/N 165015 (4 - 6 mm2 wire size)
    • Vogt P/N 3654c / 3655c (4 - 6 mm2 wire size)
    Informational PurposesAn informational icon, calling your attention
    Note
    Follow the manufacturer's guideline to properly crimp the forked terminals.
  • Minimum 300 V rated (or equivalent) 4-conductor shielded copper (Cu) communication cable with at least one twisted pair
    Informational PurposesAn informational icon, calling your attention
    Note
    This cable is used for communication connection between Powerwall and the Backup Gateway; the twisted pair is required for the CN+ and CN- communication conductors (see STEP 5: Connect Powerwall 3 to Backup Gateway for details).
  • RJ45 connectors for Ethernet wiring
  • Minimum IP65 cable glands or conduit connectors of the following sizes:
    • M20
    • M25
    • M32
    • M40
  • 63 A overcurrent protection device (breaker) for the Powerwall 3 circuit